Vladyslav Supriaha inspired Ukraine to Under-20 World Cup glory for the first time in their history as he scored twice in a 3-1 comeback win against South Korea.
Ukraine trailed inside five minutes as Valencia's Lee Kang-in converted from the penalty spot, but Supriaha found the net either side of half-time and Heorhii Tsitaishvili rounded off the scoring late on.
Saturday's final in Lodz featured two first-time finalists and it was South Korea who made the brighter start thanks to Lee's spot-kick, awarded after VAR ruled Kim Se-yun had been fouled just inside the area.